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Experimental study on the effect of external thermal pattern on the dynamics of methane-oxygen and methane-oxygen-carbon dioxide premixed flames in non-adiabatic meso-scale reactors
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för fysik. Combustion and Turbulence Research Laboratory (CTL), Department of Aerospace Engineering, Amirkabir University of Technology (Tehran Polytechnic), Hafez Ave, Tehran, Iran.
2019 (Engelska)Ingår i: International journal of thermal sciences, ISSN 1290-0729, E-ISSN 1778-4166, Vol. 137, s. 242-252Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

In the current study, the effect of external thermal pattern on the dynamics and characteristics of methane oxygen and methane-oxygen-carbon dioxide premixed flames in non-adiabatic meso-scale cylindrical reactors is investigated experimentally. In this regard, two different external thermal patterns were imposed on the outer surface of the reactors. The results showed that imposing method/direction and also temperature level of the external thermal pattern have impressive effect on flame dynamics and chemiluminescence in the non-adiabatic meso-scale reactors. Also, it was shown that increasing the temperature level of the external thermal pattern could significantly extend the flame stability and its presence range in the meso-scale reactors, especially for the vitiated mixtures (methane-oxygen-carbon dioxide). Moreover, the results demonstrated that decreasing the inner diameter of a meso-scale reactor, which was subjected to an external thermal pattern, could increase the flame controllability and its presence range in the non-adiabatic meso-scale reactors.

Ort, förlag, år, upplaga, sidor
Elsevier, 2019. Vol. 137, s. 242-252
Nyckelord [en]
Flame dynamics, Methane, Oxygen, Carbon dioxide, Meso-scale reactor, External thermal pattern
Nationell ämneskategori
Strömningsmekanik och akustik Energiteknik
Identifikatorer
URN: urn:nbn:se:umu:diva-159413DOI: 10.1016/j.ijthermalsci.2018.11.023ISI: 000467187300019OAI: oai:DiVA.org:umu-159413DiVA, id: diva2:1319078
Tillgänglig från: 2019-05-29 Skapad: 2019-05-29 Senast uppdaterad: 2019-05-29Bibliografiskt granskad

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Baigmohammadi, Mohammadreza

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Strömningsmekanik och akustikEnergiteknik

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